Refrigerator freezing device



Sept. 18, 1928.

A 1,684,590 T. J. LITLE, JR v REFRIGERATOR FREEZING DEVICE Filed Junel2, 1926 7190/4/15 I/TLE 7%.

atto-4 nu! Patented l Sept. 1s, 1928.

UNITED STATES -Pari-:NT ori-leefl THOMAS J". LITLE, JR OF DETROIT,MICHIGAN, ASSIGNOR TO COPELAND PRODUCTS, INC., OF DETROIT, MICHIGAN, ACORPORATION OF MICHIGAN.

EFRIGERATOR FREEZING DEVICE.

Application filed June 12, 1926. Serial No. 115,687.

It is the primary object of my invention my invention consists in thearrangement,

combination and construction of the various parts of my improved deviceas described in the specification, claimed in my claims and shown in theaccompanying drawing, in which:

The-single figure is a sectional-view of a portion of a refrigeratorcabinet and of my improved device installed thereinv I have shown aportion of a refrigerator cabinet' designatedgenerally as 5 throughwhich the pipes 6 and 7 leading from and to an expansion chamber areextended.

An expansion chamber is mounted in the compartment 8 lof the cabinet 5and com prises two superposed sheets of metal 9 and' 10 the edges ofwhich are -bent together and suitably sealed as at 1 1, and the faces ofwhich are at intervals joined together as at 12 by spot-Welding or anyother suitable The top plate 10 is provided with av means.

flanged opening 13 for receiving the pipe 14 leading from a conventionall'expansion valve 15 Aand refrigerant intaking pipe 7 .1

The-sheet is provided with a similar flanged opening 16 connected withthe refrigerant offtake pipe 6. The plates are bent on themselves toprovide a plurality of horizontal surfaces or platforms 17, 18 and 19 onwhich are placed a plurality of conventional ice'trays 20. The hood 21m'ay be provided overthe expansion chamber and ice trays so as toenclose them.N A suitablefront cover for the through' to. the expansionvalve 15 Aand r e-v leased by the valve 15 in a conventional maii-v nerto the bottom of theexpansion chamber through the flanged opening 13.The refrigerant will pass between the plates 9 and 10, taking adeviouscourse as directed by the spot-Wel pipe 6 in a conventionalmanner as a gas.

The bending of the sheets 9 and 10 so as to form the expansion chamberin a plurality of supporting platforms permits the use of a large numberof ice trays so that la-largequantity of -ice may be frozen with theresultant -andvantage of-both a'largeice supply and a lengthening .ofthe non-operating period of the refrigerating mechanism.

It will be obvious that various changes s 12,. and Will pass off through.the

may be made in the arrangement, eombin'a- I tion and construction ofthevarious parts of my improved device Withoutadeparting from the spirit ofmy invention, and it is my intention to cove'r'by my claims 'suchchanges 'A as may be reasonably included within the scope thereof. Y

What I claim is 1. A refrigeration device comprising superposed sheetsof met-al having their edges sealed,- said sheets being spaced apart .to

vform an' expansion chamber betn'een them,

and bent to form a plurality of platforms for the reception of liquidfreezing "trays 2. A refrigerator device comprising superposed sheetsoff metal spaced apart and hav.-

ingtheir edges sealed to form an expansion chamber between l them, saidsheets being bent on themselvesto form a plurality of separated2platforms, one above the other, for the reception of liquidfreezingtrays.

3. A refrigerator device 4comprising superposed sheets of metal havingtheir' edges sealed, saidsheetsl being spaced apart to form an expansionchamber'between them,

said sheets being bent on themselves to form a plurality of separatedplatforms, one above` -the other, for the receptionof liquid freezingtrays and a hood enclosing certain of the `sides of said chamber to forma freezing chamber.

4. A refrigerator device comprisingsupeiposed sheets of metal spacedapart and having their opposed edges sealedV and their facesintermittenty joined together to form between the same, and inlet andoutlet openingsiforA said chamber, the horizontally ex- 9. Al freezingunit for' a I mechanical retending portions of said device presenting aby toserve as shelves.

6. A refrigerator device comprising a pair substantlal area 'in ahorizontal plane whereof interitting generally S-shaped sheets of metalsealed alonethelr opposed edges and generally spaced tween the same toform a relatively shallow chamber having a plurality of horizontallyextending portlons adapted to serve as shelves, an opening ad- ]acentthe bottom of said chamber for the introduction of refrigerant thereto,and an opening adjacent the top of said chamber for the passage ofrefrigerant therefrom.

7. A refrigerator device comprisingr a pair of interttin sheets ofmetal, each of which is reversely nt upon itself to form a plurality ofrelatively widely spaced horizontal ggrtions, the opposed edges of saidsheets ing 'sealed and said sheets being generally spaced from eachother between said edges to form a relativelyfshallow chamber betweensaid sheets, inlet and' outlet openings for "said chamber, and a hoodaround said sheets in spaced relationship tov the topmost of saidhorizontal portions.

8. A' refrigerator device comprising super- ,posed sheets of metalhaving their edges sealed, said sheets being spaced apart to form anexpansion chamber between them and bent to form a plurality of platformsfor the reception of freezing trays, and a hood enclosing the top andsides of said sheetsl and spaced from the top thereof.

`nessuno frigeration system comprising a refrigerant expansion chambercomposed of metal sheets secured together at their edges and at a pointor points in their adjacent surfaces and having there-between spaces forthe circulation of refrigerant, and having a portion thereof return bentin a plane removed from and substantially parallel Vto the other portionthereof, thereby forming supporting shelves, a hood member positionedupon said expansion chamber and enclosing the disconnected space betweenthe parallel portions thereof and having openings providing access totheA helf-like portions of said expansion cham- 10. A freezing unit fora mechanical refrigeration system comprising a refrigerant expansionchamber composed of vmetal sheets secured together at their edges and ata point or points 1n their adjacent surfaces and having there-betweenspaces for the circulation v `ofrefrigerant, and having a portionthereof return bent in a lune removed from and substantially para lel tothe other por-l tion thereof, thereby forming supporting shelves, a hoodmember positioned uponsaid expansion r'chamber formingA an enclosed Y sace about one side thereof, andcnclosing t edisconnected space betweenthe parallel portions. thereof4 and having openingsproviding access tothe shelf-like portions of said expansion chamber.

THoMA's J. LrrnE, JR.

